Trigonometry can be used to find the length of a side in a triangle. Trigonometry close trigonometryThe study of sides and angles in triangles. can be used to find a missing side in a right-angled ...

National 5 Calculating the area of a triangle using trigonometry Test questions Trigonometry can be used to find the area of a triangle when you know the length of two sides and the included angle.

A 3,700-year old Babylonian clay tablet reveals an ancient method of constructing right-angled triangles that makes it the world’s oldest and most accurate trigonometric table.